Importing behavior tree as XML in Unityscript or C#?

[JesterKeymaster]

Someone on Facebook wrote:

“Hello, we have seen that in one of the latests actualizations of Rain you have added the option of importing the behavior tree as XML. This action (importing a behavior tree) can be done programatically with a method in Unityscript or C#?”

[SigilKeymaster]

The most straightforward way of loading a tree straight from XML would be to create a BTAsset and set the XML on it, then you can assign that to any AI’s BasicMind.

I made this custom script to load arbitrary tree XML (I generated my test XML from an actual tree in the editor):

using RAIN.BehaviorTrees;
using RAIN.Core;
using RAIN.Minds;
using System.Collections.Generic;
using UnityEngine;
public class CustomTreeLoader : MonoBehaviour
{
    [SerializeField]
    private TextAsset _treeXML;
    void Start()
    {
        // Create the asset
        BTAsset tCustomAsset = ScriptableObject.CreateInstance<BTAsset>();
        // Assign the tree xml, mine was exported from another tree and saved within my project
        tCustomAsset.SetTreeData(_treeXML.text);
        // You don't have to set these if they are empty, just here for example
        tCustomAsset.SetTreeBindings(new string[0] { });
        // My rig was on the same object
        AIRig tRig = GetComponentInChildren<AIRig>();
        ((BasicMind)tRig.AI.Mind).SetBehavior(tCustomAsset, new List<BTAssetBinding>());
    }
}

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